An AQW member joined my site, why isn't he showing up in-game?

The most likely reason for this is that the person who joined your site is not a member of your guild in-game. Users can join your Gamer Launch site without being a member of your guild in-game, or without being an AQW player at all (so if your parents or a friend want to join your site, they can!).

If there is a member of your site who is not showing as a member in-game, have them complete the application process in-game. That way they can sync their in-game characters with your guild site here on Gamer Launch and they'll be set!